:root {
    --primary-color: #003366;
    --secondary-color: #6c757d;
    --accent-color: #0056b3;
    --light-bg: #f8f9fa;
    --dark-text: #212529;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    line-height: 1.6;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.hero-section {
    background: linear-gradient(rgba(0, 51, 102, 0.8), rgba(0, 51, 102, 0.8)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
}

.section-padding {
    padding: 80px 0;
}

.service-card {
    transition: transform 0.3s ease;
    border: none;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.service-card:hover {
    transform: translateY(-10px);
}

.filter-white {
    filter: brightness(0) invert(1);
}

.bg-light-custom {
    background-color: var(--light-bg);
}

.navbar-brand img {
    max-height: 60px;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
}